Sonic 3 + Sonic & Knuckles "Boss Guide"

Gee, ya think this act has enough bosses? Guess
they're trying to make up for not having an Act 2 here ;)

FIRST BOSS: (The ol' ball-and-chain bit--remember
this ship from Sonic 1?)Two platforms...and one -big- ball at the end of Mecha
Sonic's chain. (Huh? How did -that- fit inside that little
ship?!?) Target the ship (and Mecha) while avoiding the ball as it
swings back and forth.

SECOND BOSS: ("Come down here & fight like
a 'bot!") Mecha Sonic returns in a ships that's protected by grey, egg-like
satelites. Each time you hit this ship, one of the satelites becomes
a smaller 'image' of the main ship. Pop each these (like soap bubbles)
before attacking the main ship again. Otherwise, they'll try to surround
you.

THIRD BOSS: Face to face(plate) with Mecha Sonic!Tip: Whenever he lands with his back to ya, get ready
to jump! This is a sure sign that he'll slide across the screen -very-
soon. When Mecha does his own version of the Sonic Spin, DON'T try
to hit him--get out of the way instead!!When he's in between attacks, target his face.